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This study addressed the effectiveness of light emitting diodes to achieve inactivation of three different Aspergillus species (Aspergillus fumigatus, Aspergillus niger and Aspergillus terreus) in a real water matrix. Three single small ultraviolet-C diodes emitting light at two different wavelengths were tested: 255 nm that is similar to the wavelength emitted by low pressure mercury lamps and 265 nm that is closer to the maximum absorbance wavelength of DNA. The ultraviolet-C diodes emitting light at 265 nm were found to be more effective than the 255 nm, achieving 3-log, 1-log and 5-log inactivations of Aspergillus fumigatus, Aspergillus niger and Aspergillus terreus using less than 20 mJ/cm (13,97 mJ/cm; 7,28 mJ/cm; 19,74 mJ/cm). The diodes have also affected the morphology of the fungal spores and increased the percentage of damaged and dead spores.
This article was published in the following journal.
Name: Water research
The emerging thermally activated delayed fluorescence materials have great potential for efficiencies in organic light-emitting diodes by optimizing molecular structures of the emitter system. However...
Perovskite quantum dots (QDs) have been widely used in white light-emitting diodes (WLEDs), due to their high quantum yield (QY), tunable bandgap, and simple preparation. However, the red-emitting per...
In this Letter, we report the broadband photoluminescence of lead-free double perovskite CsNaAgInBiCl:Mn. Under ultraviolet excitation, the white phosphor shows two emission peaks at 550 nm and 610 ...
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The purpose of the study is to assess the survival of patients treated with Litx™ versus standard of care therapies in the treatment of unresectable hepatocellular carcinoma (HCC), and t...
The purpose of this study is to learn if an experimental treatment can help thinking ability, and memory in Veterans with Gulf War Veterans Illnesses (GWVI). The experimental treatment use...
Subjects were assigned in two groups: In group 1, subjects received LLL and LED 20 min/day for 10 days after implant insertion, subjects in group 2did not undergo LLL and LED. implant stab...
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The NIR light source of our device is based on light-emitting diodes (LEDs), which can deliver sufficient light to biological tissues and induce fluorescence emission to meet the needs of ...
A technique for causing a targeted loss of molecular function from REACTIVE OXYGEN SPECIES that are formed by the illumination of dyes placed in the immediate vicinity of the target molecule.
A photoprotein isolated from the bioluminescent jellyfish Aequorea. It emits visible light by an intramolecular reaction when a trace amount of calcium ion is added. The light-emitting moiety in the bioluminescence reaction is believed to be 2-amino-3-benzyl-5-(p-hydroxyphenyl)pyrazine (AF-350).
Lasers with a semiconductor diode as the active medium. Diode lasers transform electric energy to light using the same principle as a light-emitting diode (LED), but with internal reflection capability, thus forming a resonator where a stimulated light can reflect back and forth, allowing only a certain wavelength to be emitted. The emission of a given device is determined by the active compound used (e.g., gallium arsenide crystals doped with aluminum or indium). Typical wavelengths are 810, 1,060 and 1,300 nm. (From UMDNS, 2005)
Inactivation of viruses by non-immune related techniques. They include extremes of pH, HEAT treatment, ultraviolet radiation, IONIZING RADIATION; DESICCATION; ANTISEPTICS; DISINFECTANTS; organic solvents, and DETERGENTS.
Fungus infection of the external ear, usually by ASPERGILLUS species
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...